Alright, let's work through 5310 times 3109 step by step
5310 × 3109 = 3109 × (5310)
+ 3109 × 0 that equals 0
+ 3109 × 10 giving us 31090
+ 3109 × 300 resulting in 932700
+ 3109 × 5000 yielding 15545000

= 16508790
